This is not mine, but Sigmund Freud's (more or less).
One of the young ladies who took part in the conversation remembered finding an interesting picture of the many religious currents influencing the history of that period in an English novel she had recently read ... but she could not remember the name of the work.
... The young lady underwent analysis to find out why she had forgotten the title. It was
Ben Hur, by Lewis Wallace. ... The girl herself realized that she had forgotten the name 'because it contains an expression that neither I nor any other young girl would wish to employ, particularly in front of young men' ... In short, she unconsciously equated utterling the title of Ben Hur out loud with offering sexual favors I am a whore'>'Ich bin Hure' - I am a whore, and consequently her inability to remember it amounted to rejecting any unconscious temptation of that kind.
(The psychopathology of everyday life, by Sigmund Freud)